(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.. %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

As of this writing, the said sites are inaccessible.

NOTES: This Trojan terminates itself if any of the following conditions is met:

SOLUTION

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Identify and terminate files detected as TROJ_FAKEAV.CLS

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If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.

If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

To terminate the malware/grayware process:

Scan your computer with your Trend Micro product and take note of the name of the malware/grayware/spyware detected.

In the list of running programs, locate a malware/grayware/spyware file detected earlier.

Select the detected files, then press either the End Task or the End Process button, depending on the version of Windows you are using.

Do the same for the remaining detected malware/grayware/spyware files in the list of running programs.

To check if the malware/grayware/spyware process has been terminated, close Task Manager, and then open it again.

Close Task Manager.

Step 3

Delete this registry value

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Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

Open Registry Editor. To do this, click Start>Run, type regedit in the text box provided, then press Enter.

In the left panel of the Registry Editor window, double-click the following: HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>RunOnce

In the right panel, locate and delete the entry:VDC = %User Temp%\{malware file name}.exe {parameter}

In the left panel of the Registry Editor window, double-click the following: HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Run

In the right panel, locate and delete the entry:VDC = %System Root%\Documents and Settings>All Users>Application Data>{random characters} {parameter}

Close Registry Editor.

Step 4

Delete this registry key

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Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

In the left panel, double-click the following: HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>

Still in the left panel, locate and delete the key: {application name}

Close Registry Editor.

Step 5

Search and delete this folder

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Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result. %System Root%\Documents and Settings\All Users\Application Data\{random characters}

To delete the malware/grayware folder:

Right-click Start then click Search... or Find..., depending on the version of Windows you are running.

Once located, select the folder then press SHIFT+DELETE to permanently delete the folder.

Step 6

Scan your computer with your Trend Micro product to delete files detected as TROJ_FAKEAV.CLS. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.